Excavating machinery.



No.- 847,331 PATENTED MAR. 19, 1907.

A. R. GROSSMITH. I EXOAVATING MACHINERY.

APPLICATION FILED JULY 23, 1906.

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No- 847,331. PATENTED MAR. 19, 1907.

A. R; GROSSMITH.

EXGAVATING MACHINERY. APPLICATION FILED JULY 23, 1906.

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PATENTED MAR. 19, 1907.

'A. R. GROSSMITH. v EXGAVATING MACHINERY.

APPLIOATION FILED JULY 23, 1906.

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- EXCAVATlNGIVIACHINERY.

Specification of Letters Patent.

PatentedMarch 19,1907.

Application filed July 23, 1906. Serial No. 327,408.

To all whom it may concern.-

Be it known that I, ALFRED ROGER Gnos- SMITH, works manager of LloydsIronstone Company, Limited, a subject of the King of Great Britain,residing at Corby, near Kettering, England, have invented certain newand useful Improvements in and Relating to Excavating Machinery and theLike, of which the following is a specification.

This invention relates to an improved appliance for the excavation andremoval of materialssuch, for instance, as isrequired in the removal ofearths and the like in mines, railway and canal cuttings, docks, andharbors and for excavating purposes generallyand has for its object ameans whereby the may be removed and loaded in a much quicker and moreconvenient manner than has hitherto been the case. For this purpose Icarry an excavator or dredge on traveling bogies or trucks, havingmounted above them a circular girder or frame, upon which is carried atower of suitable construction. Around the top of the said circulargirder or frame is attached a rail-path, traveling upon which is acarriage supporting the bottom end of the jib 0r boom'which carries theexcavator or dredge arm. At any convenient elevations on the said towerare.provided brackets carrying, one ormore annular platforms capable ofrevolving in a horizontal plane about the axis of the tower. Upon thetop of the tower is provided a turn-table so arranged as to support thejib by means of suitable stays and revolve with it. The turn-table isalso provided with hoistingmachinery for the excavator-arm.

By this invention any large quantities of earth or other materials canbe elevated continuously and directly onto the said platform orplatforms, and thereby conveyed after be ing screened, if necessary, toany advantageous position for depositing or loading.

In order that this invention may be clearly understood and more easilycarried into practice, I will now describe drawings in which I haveillustrated an apparatus con structed according to this invention.

Figure 1 is a sectional elevation of the apparatus. Fig. 2 is a plan.Fig. 3 is a sectional plan on the line A A, Fig. 1. Fig. 4 is an underside view of one of the platforms, showing how it is rotated.

1 is the circular girder or frame, carried on which may be supported bywheels on rails, but are preferably such as are described in aspecification of evendate herewith. On the frame 1 is a rail-path 3,traveling on which is a carriage 4, with vertical and horizontalrollers, supporting the jib 5, carrying the excavator-arm 6,;which ishere shown provided with a series of ordinary vexcavatingbuckets 7,passing over pulleys 8, but may conveniently be fitted withadigging-drum and con veyer, such as. are described in anotherspecification of even date herewith.

9 is a tower of any convenient construction erected on the girder 1 andcarryingon brackets 11 and rollers 12 two revolving annular platforms 1314. At, the top ofl the tower is a turnstable 15, turning on horizontaland vertical rollers and connected by.- stays 16 to the jib 5.

17 is an engine with furnaceand boiler-18, driving by the shaft 19 andbevel-gear 20 the central vertical shaft 21, which; passes up to theturn-table 15 and drivesby bevelgear 22 the horizontal shaft 23, whichactuates by a chain 24 the upper pulley 8, driving theexcavating-buckets. The shaft 23 also drives another shaft 25, to which:can be clutched the drum 26 for raising the excavator-arm 6.

The platforms 13 and14 may be rotated in any convenient way but theyareshown as driven by ropes passing round, rings 27 and guide-pulleys 28on the platformsand drums 29, carried by the tower and provided withteeth gearing with pinions 30 onthe vertical shaft 21.

As the material is emptied from theexcavator-buckets it falls by a chute31 onto the platform 13, which maybe perforated to screen the material,and thence to the lower platform 14. The unscreened and screenedmaterials are scraped from the platforms by plows 32, which may beadjusted to discharge the material at any point desired-say over chutes33, delivering into trucks 34, or onto conveyers or distributing-wheels,such as are described in the former l specification, Serial N 0.327,407.

In order to slew the jib, I may provide a rope-drum 35 at the foot ofthe jib, having on it a rope 36, passing round guide-pulleys 37 on thecarriage 4 and all round the frame 1. This drum may be actuated by ashaft 38 1 four trucks 2,

which can be clutched to the upper pulley 8.

When it is required to move the whole machine, the engine 39 may beemployed to drive the bevel-wheel 40, loose on the shaft 21 and gearingwith bevel-wheels 41 011 raframe, a jib on dial shafts 42, drawingthrough bevel-gear 43 the vertical shafts 44, passing down through thepivots of the bogies.

Gear may be provided for turning the trucks or bogies when it is desiredto move the machine out of the straight course.

The boiler and furnace may be fixed or may be mounted on a carriagecapable of moving round the rail-track 3.

What I claim is- 1. In excavating machinery the combination of acircular frame, a carriage capable of movement around the frame, a towersupported by the frame, an annular platform carried by the tower, andmeans for revolving the platform substantially as described.

2. The combination of a circular frame, a carriage capable of movementaround the frame, a jib on the carriage, a tower sup ported by theframe, an annular platform carried by the tower, a conveyer carried bythe jib and adapted to deliver material onto the platform, and means forrevolving the platform substantially as described.

3. The combination of a circular frame, a carriage capable of movementaround the frame, a jib on the carriage, a tower supported by the frame,a perforated annular platform carried by the tower, an annular platformcarried by the tower below the first, a conveyer carried by the jib andadapted to deliver material onto the up er platform, and means forrevolving the p atforms substantially as described.

4. In excavating machinery the combination of a circular frame, acarriage capable of movement around the frame, a tower supported by theframe, an annular platform carried by the tower, means for revolving theplatform, wheels supporting the frame, and means for driving the wheels,substantially as described.

5. The combination of a circular frame, a carriage capable of movementaround the frame, a jib on the carriage, a tower supported by the frame,an annular platform carried by the tower, a conveyer carried by the jiband adapted to deliver material onto the platform,

wheels supporting the frame, and means for l l i l means for revolvingthe platform, j

driving the wheels substantially as described.

6. The combination of a circular frame, a carriage capable of movementaround the the carriage, a tower supported by the frame, a perforatedannular platform carried by the tower, an annular plat form carried bythe tower below the first, a conveyer carried by the jib and adapted todeliver material onto the upper platform, means for revolving theplatforms, wheels supporting the frame, and means for driving the wheelssubstantially as described.

7. The combination of a circular frame, a carriage capable of movementaround the frame, a jib on the carriage, a tower supported by the frame,an annular platform carried. by the tower, a conveyer carried by the jiband adapted to deliver material onto the platform, means for revolvingthe platform, a turn-table on the top of the tower connected to the jib,and means carried by the turn-table for operating the conveyersubstantially as described.

8. The combination of a circular frame, a carriage capable of movementaround the frame, a jib on the carriage, a tower supported by the frame,an annular platform carried by the tower, a conveyer carried by the jiband adapted to deliver material onto the platform, means for revolvingthe platform, a turn-t able on the top of the tower connected. to thejib, means carried by the turn-table for operating the conveyer, wheelssupporting the frame, and means for driving the wheels substantially asdescribed.

9. The combination of a circular frame, a carriage capable of movementaround the frame, a jib on the carriage, a tower supported by the frame,a perforated annular platform carried by the tower, an annular platformcarried by the tower below the first, a conveyer carried by the delivermaterial onto the upper platform, means for revolving the platforms, aturntable on the top of the tower connected to the jib, me ans carriedby the turn-table for operating the conveyer, wheels supporting theframe, and means for driving the wheels substantially as described.

ALFRED ROGER GROSSMITH.

Vitnesses:

R. B. RANsFoRD, J. WEATHERLY.

jib and adapted to

